Drawing type wiring low-voltage cabinet and preparation method thereof

Abstract

The low-voltage cabinet comprises a cabinet body which is divided into a drawer chamber, a secondary cable chamber, a cable incoming and outgoing line chamber and a bus chamber, the secondary cable chamber is arranged on the right side of the drawer chamber, the cable incoming and outgoing line chamber is arranged on the rear sides of the drawer chamber and the secondary cable chamber, and the bus chamber is arranged on the right side of the drawer chamber. The bus chamber is arranged on the upper sides of the drawer chamber, the secondary cable chamber and the cable inlet and outlet chamber, a terminal strip is installed in the secondary cable chamber through a guide rail mechanism, the guide rail mechanism comprises a guide part fixed on the cabinet body, a sliding part matched with the guide part is arranged on the guide part, and the terminal strip is fixed at the front end of the sliding part. The terminal side wire harness is correspondingly fixed on the guiding piece and the sliding piece through the two fixing points, the terminal side wire harness between the two fixing points forms a U shape, the length of the terminal side wire harness between the two fixing points is larger than or equal to the maximum sliding distance of the sliding piece relative to the guiding piece, and the connector has the advantages of being simple in structure, convenient to maintain and good in heat dissipation effect. The method has the advantages of simple process and convenience in operation.

Description

Technical Field

[0001] The present invention relates to a power equipment, in particular to a pull-out type wiring low-voltage cabinet and a preparation method thereof. Background Art

[0002] With the continuous change of the use environment and space of the power system, the performance requirements and size requirements for low-voltage cabinets are getting higher and higher. The existing low-voltage drawer-type outgoing line cabinet with a cabinet depth ≤ 600mm is restricted by space, and there is a problem that the wiring and connection of the first and second wire harnesses cannot be separated. Usually, the secondary wire harness is wired closely along the vertical busbar channel, resulting in the convergence of the primary and secondary wire harnesses and other components at the back of the cabinet, which not only affects heat dissipation, but also makes it inconvenient for client wiring and later maintenance. Summary of the Invention

[0003] The purpose of the present invention is to provide a pull-out type wiring low-voltage cabinet and a preparation method. The low-voltage cabinet has the advantages of simple structure, low cost, convenient maintenance and good heat dissipation effect, and the method has the advantages of simple process and convenient operation.

[0004] To solve the problems in the prior art, the present invention provides a pull-out type wiring low-voltage cabinet, including a cabinet body, which is divided into a drawer room, a secondary cable room, a cable inlet and outlet room and a busbar room. Among them, the secondary cable room is arranged side by side on the right side of the drawer room, the cable inlet and outlet room is arranged at the rear of the drawer room and the secondary cable room, and the busbar room is arranged above the drawer room, the secondary cable room and the cable inlet and outlet room. A slidable terminal block is installed in the secondary cable room through a guide rail mechanism. The guide rail mechanism includes guide members fixed on the cabinet body at upper and lower intervals, and a sliding member is arranged on the guide member and is matched with the guide member. The terminal block is fixed at the front end of the sliding member, and the terminal side wire harness connected to the terminal block is fixed on the guide member and the sliding member through two fixed points respectively. The terminal side wire harness between the two fixed points forms a U shape, and the length of the terminal side wire harness between the two fixed points is greater than or equal to the maximum sliding distance of the sliding member relative to the guide member.

[0005] Further, in a pull-out type wiring low-voltage cabinet of the present invention, the guide member is provided with a C-shaped chute, and the sliding member is clamped in the chute of the guide member.

[0006] Further, in a pull-out type wiring low-voltage cabinet of the present invention, the front end of the guide member is provided with an anti-detachment stop block, and the rear end of the sliding member is provided with a bolt hole for fixing an anti-detachment limit member cooperating with the anti-detachment stop block through a bolt.

[0007] Further, in a pull-out type wiring low-voltage cabinet of the present invention, a door that can be opened is hinged on the front side of the secondary cable room, and a partition board is fixed on the rear side of the secondary cable room, and through holes are arranged at intervals on the partition board.

[0008] Further, for a pull-out type wiring low-voltage cabinet of the present invention, three guiding members are provided, and supporting rods corresponding to the guiding members are provided on the right side of the secondary cable chamber of the cabinet body, and each guiding member is horizontally fixed on the corresponding supporting rod.

[0009] Further, for a pull-out type wiring low-voltage cabinet of the present invention, a plurality of drawer units are installed in the drawer chamber. The drawer unit includes a drawer, and an operating mechanism is installed in the drawer. The operating mechanism is connected to a plug-in contact fixed at the rear side of the drawer.

[0010] Further, for a pull-out type wiring low-voltage cabinet of the present invention, the cabinet body includes a frame, the frame is assembled by profiles, and modulus holes are provided on the profiles.

[0011] Based on the same concept, the present invention also provides a preparation method for the above-mentioned pull-out type wiring low-voltage cabinet, including the following steps:

[0012] S1. Assemble the frame of the cabinet body with profiles and process modulus holes on the frame;

[0013] S2. Fix the guide rail mechanism in the secondary cable chamber, fix the terminal block at the front end of the sliding member, and respectively fix the terminal side wire harnesses on the guiding member and the sliding member;

[0014] S3. Install drawer units in the drawer chamber, arrange vertical bus channels in the cable inlet and outlet chamber, and arrange buses in the bus chamber.

[0015] Compared with the prior art, a draw-out type wiring low-voltage switchgear and its manufacturing method of the present invention have the following advantages: By setting a switchgear body and dividing the switchgear body into a drawer compartment, a secondary cable compartment, a cable inlet and outlet compartment, and a busbar compartment. Among them, the secondary cable compartment is arranged side by side on the right side of the drawer compartment, the cable inlet and outlet compartment is arranged at the rear of the drawer compartment and the secondary cable compartment, and the busbar compartment is arranged above the drawer compartment, the secondary cable compartment and the cable inlet and outlet compartment. In the secondary cable compartment, a slidable terminal block is installed through a guide rail mechanism. The guide rail mechanism is provided with guiding members fixed at upper and lower intervals on the switchgear body. A sliding member matched with the guiding members is arranged on the guiding members. The terminal block is fixed at the front end of the sliding member. The terminal side wire harness connected to the terminal block is correspondingly fixed on the guiding members and the sliding member through two fixing points, so that the terminal side wire harness between the two fixing points forms a U shape, and the length of the terminal side wire harness between the two fixing points is greater than or equal to the maximum sliding distance of the sliding member relative to the guiding members. Thus, a draw-out type wiring low-voltage switchgear with simple structure, low cost, convenient maintenance and good heat dissipation effect is formed. Compared with the prior art, by dividing the switchgear body into a drawer compartment, a secondary cable compartment, a cable inlet and outlet compartment, and a busbar compartment, and installing a slidable terminal block through a guide rail mechanism in the secondary cable compartment, and fixing the terminal side wire harness on the guiding members and the sliding member of the guide rail mechanism through two fixing points correspondingly, on the one hand, the separation of the primary and secondary systems is realized, the heat dissipation effect and safety and reliability are improved. On the other hand, the terminal block can be pulled out of the switchgear body for wiring operation, the convenience of operation and maintenance is improved, and the terminal side wire harness will not be in a mess. It can be widely used in various low-voltage power distribution systems such as power plants, substations, industrial and mining enterprises, and municipal construction. Especially for low-voltage outgoing switchgears with a switchgear body depth ≤ 600mm, the advantages are more obvious, and the power supply reliability is improved. The manufacturing method of the draw-out type wiring low-voltage switchgear provided by the present invention has the advantages of simple process and convenient operation.

[0016] The following will describe in detail a draw-out type wiring low-voltage switchgear and its manufacturing method of the present invention with reference to the embodiments shown in the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of a draw-out type wiring low-voltage switchgear of the present invention;

[0018] Figure 2 is the axonometric view of a draw-out type wiring low-voltage switchgear of the present invention when the terminal block is in the switchgear body;

[0019] Figure 3 is the axonometric view of a draw-out type wiring low-voltage switchgear of the present invention when the terminal block is pulled out;

[0020] Figure 4 is Figure 3 the partial enlarged view of position A in

[0021] Figure 5Isometric view of the cabinet body in the present invention;

[0022] Figure 6 Front view of the terminal block and the terminal side wiring harness in the present invention;

[0023] Figure 7 Left view of the terminal block and the terminal side wiring harness in the present invention;

[0024] Figure 8 Isometric view of the terminal block and the terminal side wiring harness in the present invention;

[0025] Figure 9 Top view of the drawer unit in the present invention;

[0026] Figure 10 Isometric view of the drawer unit in the present invention. Detailed implementation manners

[0027] First of all, it should be noted that the orientation terms such as up, down, left, right, front, and back in the present invention are only described according to the drawings for the convenience of understanding, and do not limit the technical solutions and the scope of protection claimed in the present invention.

[0028] As Figures 1 to 10 shown, a detailed implementation manner of a pull-out type wiring low-voltage cabinet of the present invention includes a cabinet body 1, which divides the cabinet body 1 into a drawer compartment 11, a secondary cable compartment 12, a cable inlet and outlet compartment 13, and a busbar compartment 14. Among them, the secondary cable compartment 12 is arranged side by side on the right side of the drawer compartment 11, the cable inlet and outlet compartment 13 is arranged at the rear side of the drawer compartment 11 and the secondary cable compartment 12, and the busbar compartment 14 is arranged on the upper side of the drawer compartment 11, the secondary cable compartment 12, and the cable inlet and outlet compartment 13. In the secondary cable compartment 12, a slidable terminal block 3 is installed through a guide rail mechanism 2. The guide rail mechanism 2 is provided with guide members 21 fixed at upper and lower intervals on the cabinet body 1. A sliding member 22 is arranged on the guide member 21 and is matched with the guide member 21. The terminal block 3 is fixed at the front end of the sliding member 22. The terminal side wiring harness 4 connected to the terminal block 3 is fixed to the guide member 21 and the sliding member 22 corresponding to two fixed points. The terminal side wiring harness 4 between the two fixed points forms a U shape, and the length of the terminal side wiring harness 4 between the two fixed points is greater than or equal to the maximum sliding distance of the sliding member 22 relative to the guide member 21, so as not to affect the movement of the terminal block 3.

[0029] Through the above settings, a pull-out type low-voltage switchgear with a simple structure, low cost, convenient maintenance, and good heat dissipation effect is formed. Compared with the prior art, in the present invention, the cabinet body 1 is divided into a drawer compartment 11, a secondary cable compartment 12, a cable inlet / outlet compartment 13, and a busbar compartment 14. A slidable terminal block 3 is installed in the secondary cable compartment 12 through a guide rail mechanism 2, and the terminal side wire harness 4 is fixedly arranged on the guide members 21 and sliding members 22 of the guide rail mechanism 2 through two fixed points. On the one hand, the separation of the primary and secondary systems is achieved, improving the heat dissipation effect and safety reliability. On the other hand, the terminal block 3 can be pulled out of the cabinet body 1 for wiring operations, improving the convenience of operation and maintenance, and preventing the terminal side wire harness 4 from being disordered. It can be widely used in various low-voltage distribution systems such as power plants, substations, industrial and mining enterprises, and municipal construction. Especially for low-voltage outgoing switchgears with a cabinet depth ≤ 600mm, the advantages are more obvious, improving the power supply reliability. It should be noted that the component composition and wiring method of the low-voltage switchgear are well-known to those skilled in the art. Among them, the drawer compartment 11 is used to install a plurality of push-pull drawer units 5, the cable inlet / outlet compartment 13 is used to arrange the vertical busbar channel and cable inlet / outlet, the busbar compartment 14 is used to arrange the busbar and extend it to the vertical busbar channel.

[0030] As an optimized solution, in this specific embodiment, the guide member 21 and the sliding member 22 adopt the following sliding fit structure: a C-shaped chute is provided on the guide member 21, and the sliding member 22 is clamped in the chute of the guide member 21. This setting has the characteristics of simple structure, easy processing, and stable movement. To prevent the terminal block from falling off and being damaged, in this specific embodiment, a anti-drop block 211 is provided at the front end of the guide member 21. Correspondingly, a bolt hole 221 is provided at the rear end of the sliding member 22, and an anti-drop limit member (not shown in the figure) that cooperates with the anti-drop block 211 is fixed at the bolt hole 221 through a bolt.

[0031] As a specific embodiment, in the present invention, a door panel 121 that can be opened is hinged on the front side of the secondary cable compartment 12, a partition plate 122 is fixed on the rear side of the secondary cable compartment 12, and through holes 123 are provided on the partition plate 122 at intervals, so that the terminal side wire harness 4 can pass through the through holes 123 and extend to the cable inlet / outlet compartment 13 and be connected to the corresponding plug-in unit. As a specific embodiment, the present invention provides three guide members 21, and a support rod 124 corresponding to the guide member 21 is provided on the right side of the secondary cable compartment 12 of the cabinet body 1, so as to horizontally fix each guide member 21 on the corresponding support rod 124.

[0032] As a specific embodiment, the present invention adopts the following structure for the drawer unit 5: a drawer 51 is provided, an operating mechanism 52 is installed in the drawer 51, and the operating mechanism 52 is connected to a plug-in contact 53 fixed to the rear side of the drawer 51, so as to be plugged into the vertical busbar channel through the plug-in contact 53. As a specific embodiment, for the convenience of assembly and to improve the versatility and standardization of components, the present invention adopts a modular assembled structure for the cabinet body 1, that is, the frame of the cabinet body 1 is assembled with profiles, and modular holes are provided on the profiles to facilitate the installation of components. In practical applications, the present invention should also provide corresponding side plates on the left, right, rear, lower and upper sides of the frame of the cabinet body 1 to improve the protection effect and safety reliability.

[0033] Practical applications have shown that the draw-out type wiring low-voltage cabinet provided by the present invention can produce the following beneficial effects: 1. The present invention adopts a draw-out type wiring design scheme, which can effectively solve problems such as the concentration of primary and secondary wire harnesses and other functional components at the back of the cabinet, heat dissipation, client wiring, and later maintenance; 2. The whole cabinet adopts a modular assembled structure, with modular hole installation, strong component versatility, good applicability, and high standardization; 3. The upper part of the cabinet body is the busbar chamber, the rear part is the vertical busbar channel and the cable inlet and outlet chamber, and the right side is designed as the secondary cable chamber, which has the function of separating the primary and secondary systems, improving safety and maintenance convenience; 4. The length can be distributed and selected according to the number of cabinet circuits and the quantity of functional components, and the size is adjustable.

[0034] Based on the same concept, the present invention also provides a preparation method for a draw-out type wiring low-voltage cabinet, which specifically includes the following steps:

[0035] S1. Assemble the frame of the cabinet body 1 with profiles and process modular holes on the profiles.

[0036] S2. Fix the guide rail mechanism 2 in the secondary cable chamber 12, fix the terminal block 3 at the front end of the sliding member 22, and fix the terminal side wire harnesses 4 on the guide member 21 and the sliding member 22 respectively.

[0037] S3. Install the drawer unit 5 in the drawer chamber 11, arrange the vertical busbar channel in the cable inlet and outlet chamber 13, and arrange the busbars in the busbar chamber 14.

[0038] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of protection requested by the present invention. Without departing from the design concept of the present invention, various deformations made by those skilled in the art based on the technical solution of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A drawer-type low-voltage switchgear, comprising a cabinet body (1), characterized in that, The cabinet body (1) is partitioned into a drawer compartment (11), a secondary cable compartment (12), a cable inlet / outlet compartment (13), and a busbar compartment (14). Among them, the secondary cable compartment (12) is arranged side by side on the right side of the drawer compartment (11), the cable inlet / outlet compartment (13) is arranged at the rear side of the drawer compartment (11) and the secondary cable compartment (12), the busbar compartment (14) is arranged on the upper side of the drawer compartment (11), the secondary cable compartment (12), and the cable inlet / outlet compartment (13). A terminal block (3) that can slide back and forth is installed in the secondary cable compartment (12) through a guide rail mechanism (2). The guide rail mechanism (2) includes guide members (21) fixedly arranged at upper and lower intervals on the cabinet body (1), and sliding members (22) that cooperate with the guide members (21). The terminal block (3) is fixed to the front end of the sliding member (22), and the terminal side wire harness (4) connected to the terminal block (3) is fixedly arranged on the guide member (21) and the sliding member (22) through two fixed points. The terminal side wire harness (4) between the two fixed points forms a U shape, and the length of the terminal side wire harness (4) between the two fixed points is greater than or equal to the maximum sliding distance of the sliding member (22) relative to the guide member (21).

2. The draw-out type wiring low-voltage switchgear according to claim 1, characterized in that, The guide member (21) is provided with a C-shaped chute, and the sliding member (22) is clamped in the chute of the guide member (21).

3. The draw-out type wiring low-voltage switchgear according to claim 2, characterized in that, The front end of the guide member (21) is provided with an anti-detachment stop block (211), and the rear end of the sliding member (22) is provided with a bolt hole (221) for fixing an anti-detachment limit member that cooperates with the anti-detachment stop block (211) through a bolt.

4. The draw-out type wiring low-voltage switchgear according to claim 3, characterized in that, A door panel (121) that can be opened is hinged to the front side of the secondary cable compartment (12), and a partition plate (122) is fixed to the rear side of the secondary cable compartment (12). The partition plate (122) is provided with through holes (123) distributed at intervals.

5. The draw-out type wiring low-voltage switchgear according to claim 4, characterized in that, There are three guide members (21), and support rods (124) corresponding to the guide members (21) are arranged on the right side of the secondary cable compartment (12) of the cabinet body (1). Each guide member (21) is horizontally fixed on the corresponding support rod (124).

6. A pull-out type low-voltage switch cabinet according to claim 5, characterized in that, A plurality of drawer units (5) are installed in the drawer compartment (11). The drawer unit (5) includes a drawer (51), and an operating mechanism (52) is installed in the drawer (51). The operating mechanism (52) is connected to a plug-in contact (53) fixed to the rear side of the drawer (51).

7. A pull-out type low-voltage switch cabinet according to claim 6, characterized in that The cabinet body (1) includes a frame, and the frame is assembled from profiles. The profiles are provided with modular holes.

8. A preparation method of the pull-out type wiring low-voltage cabinet according to claim 7, characterized in that, It includes the following steps: S1. Assemble the frame of the cabinet body (1) using profiles and process modular holes on the profiles; S2. Fix the guide rail mechanism (2) in the secondary cable compartment (12), fix the terminal block (3) at the front end of the sliding member (22), and fix the terminal side wire harness (4) on the guide member (21) and the sliding member (22) respectively; S3. Install the drawer unit (5) in the drawer compartment (11), arrange a vertical busbar channel in the cable inlet / outlet compartment (13), and arrange busbars in the busbar compartment (14).

Images